<template>
  <div class="login">
    <div class="login-form">
      <div class="input-group">
        <div class="title">后台管理系统</div>
        <el-input :autofocus="true" placeholder="请输入用户名" icon="time" v-model="username"></el-input>
      </div>
      <div class="input-group">
        <el-input placeholder="请输入密码" type="password" icon="time" v-model="password"></el-input>
      </div>
      <div class="input-group">
        <label>记住我？</label>
        <el-switch v-model="rememberMe" on-text="" off-text=""></el-switch>
      </div>
      <div class="input-group">
        <el-button @click.native="login" type="primary" :loading="isBtnLoading">{{btnText}}</el-button>
      </div>
    </div>
  </div>
</template>
<script>
export default {
  data () {
    return {
      username: '',
      password: '',
      rememberMe: false,
      isBtnLoading: false
    }
  },
  computed: {
    btnText () {
      if (this.isBtnLoading) return '登录中...'
      return '登录'
    }
  },
  methods: {
    login () {
      if (!this.username) {
        this.$message.error('请填写用户名')
        return
      }
      if (!this.password) {
        this.$message.error('请填写密码')
        return
      }
      // let loginParams = {username: this.username, password: this.password}
      // this.isBtnLoading = true
      // ...
    }
  }
}
</script>
<style lang="scss" scoped>
  .login {
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #efeeee;
    .login-form {
      display: flex;
      flex-direction: column;
      align-items: center;
      width: 500px;
      height: 400px;
      border-radius: 10px;
      background: white;
      border: 1px #eaeaea solid;
      box-shadow: 0px 0px 25px #cac6c6;
      .title {
        color: #20a0ff;
        font-weight: bold;
        font-size: 40px;
        text-align: center;
        line-height: 2.2;
        font-family: sans-serif;
      }
      .input-group {
        margin-top: 30px;
        width: 80%;
        button {
          width: 100%;
        }
      }
    }
  }
</style>